H - Electricity – 02 – K
Patent
H - Electricity
02
K
H02K 7/00 (2006.01) G05G 15/00 (2006.01)
Patent
CA 2292067
An actuator device for actuating a control mechanism by axially moving an actuating member against a force comprises a housing in which a reversible driving means is arranged with a first rotatable part and a second rotatable part engagable with one another and acting on said actuating member for axially moving it in feed direction to said control mechanism upon rotation in one direction. An electric motor rotates said first rotatable part and said second rotatable part by engagement with said first rotatable part. Rotation preventing means prevent a rotation of at least one of said rotatable parts in a second direction. Releasing means release said rotation preventing means to permit rotation of said at least one rotatable part to permit said actuating member to be axially moved in a direction opposite to said feed direction. To provide an actuator device of simple construction reliably preventing rotation of the actuating member without loading the electric motor with a torque for preventing such rotation said force acting on said actuating member is externally applied by said control mechanism and said rotation preventing means is arranged between said second rotatable part and said housing to rotationally fix said rotatable part to said housing to prevent rotation in said second direction.
Cooper Cameron Corporation
Smart & Biggar
LandOfFree
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